Push button lock module for attachment to a door knob



FIG. 1 is a left-front perspective view of a push button lock module for attachment to door knob showing our new design;

FIG. 2 is a left side elevation view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a top plan view thereof; and

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a push button lock module for attachment to a door knob, as shown and described. 